38 
RECOED OF DEEP WELL DRILLING FOR 1904. 
[bull. 264. 
courtes} T of drillers and well owners, presented to the Survey. To 
facilitate the copying 1 and tiling of these records the following blank is 
used. The size of the original is 8 by 10^ inches. 
Form used for obtaining well records. 
WELL RECORD. 
Well is located miles in a direction from post-office 
in the { of £ of see twp , range , in the State of 
Owner Contractor Driller 
Well begun , 190..; completed , 190.. 
Rig used: Cable, rotary, jet, or Total depth 
Length of casing: ft. Diameter: in. from ft. to ft.; in. from ft. to ft. 
{Completed well develops the following water-bearing strata: From ft. to ft., 
from ft. to ft., from ft. to Main supply from ft- 
Completed well pumps gals, per min. Flows gals, per min. Pressure 
Oil and [Pool or district Well No on farm 
gas. |\\ ell yields Yield first 24 hours Initial pressure 
[Oil or gas.] 
Records sent by Address 
LOG OF WELL. 
From— 
Character of material. 
(State w hether hard or soft, 
give color.) 
and 
Remarks. 
(Note especially depths and thick- 
ness of all water l<ea ling strata, 
height to which water from each 
layer rises, quality of the water 
from each, and yield in gallons 
per minute.) 
CO.VITDHNTIAL RECORDS. 
In many instances borings are put down at great expense for the 
simple purpose of testing for oil, gas, water, or mineral, or of deter- 
mining the depth, character, and structure of coal, iron, or other 
mineral deposits. It can not be expected in such eases that the data 
obtained will be thrown open to others who have gone to no expense 
in the matter, but who would be only too glad to make use of the 
information for their own interest. It is almost universally recog- 
nized, however, that such information may be safely given to the 
United States Geological Survey, whose members are rigidly prohib- 
ited by law from having any personal or private interest in the lands 
or mineral wealth of the region under survey. Such informaton will, 
if desired, be regarded as strictly confidential, and a signed agreement 
by the Director to that effect will be given if requested. When con- 
fidential samples, records, or other information are received they are 
stamped "Confidential" and the material is securely eared for. 
COOPERATION WITH STATE GEOLOGISTS. 
In a number of States arrangements for cooperation have been made 
with State or local geologists. Two sorts of arrangements have been 
made. In Alabama, Iowa, Michigan, Minnesota, and West Virginia 
